Issue with multiple context root with same name

Hi,

I use IIS as a webserver to redirect to my application server. In my plugin-cfg.xml file, i mention the virtual host,URI grps,server cluster etc.

Now i am facing one issue.i have 2 context root with same name (suppose /abc )and they have different application server.

How can i configure my IIS to understand and send the request to correct application server?

--Ansh